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Publication numberUS2049191 A
Publication typeGrant
Publication dateJul 28, 1936
Filing dateSep 22, 1934
Priority dateSep 22, 1934
Publication numberUS 2049191 A, US 2049191A, US-A-2049191, US2049191 A, US2049191A
InventorsBouget Yves A, Malhiot Frank M
Original AssigneeWestern Electric Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Combination material working machine
US 2049191 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)


July 28, 1936. A, BQUGET r. 2,049,191

' COMBINATION MATERIAL WORKING MACHINE Filed Sept. 22, 1934 4 Sheets-Sheet 2 FIG. 5.

i i /72 I 5y F: M. MAL/H07 U v fiRWw M ATTORNEY July 28, 1936. Y. A. BOUGET ET AL 2,049,191

COMBINATION MATERIAL WORKING MACHINE Filed Sept. 22, 1934 4 Sheets-Sheet 3 I40 I38 I42 I39 FIG. 9.


FIYG. I0. I35

, FIG/2. H I 2 l FIG. 1/. 2o /29 -i i m1 a 22/ 22/ /2s-- ,25 130 I22 ,43/ 124 iz--/23.


INVENTORS Patented July 28, 1936 UNITED STATES PATENT OFFICE COMBINATION MATERIAL WORKING MACHINE Application September 22, 1934, Serial No. 745,022

2 Claims.

This invention relates to combination material working machines and more particularly to a ma chine tool adaptable to be used as a lathe, circular saw, jigsaw, jointer and the like.

An object of the invention is to provide a machine tool of simple and rigid construction and capable of being easily and quickly adapted for use in a variety of operations.

'With the above and other objects in view one v embodiment of the invention may be in a wood lathe having a skeleton box shaped bed comprising a pair of channel shaped longitudinal side members of metal held rigidly together and spaced apart by means of transverse end members of metal preferably welded across the ends of the side members, the machine being further provided with a headstock and a motor therefor mounted on one end of the bed and with other auxiliary assemblies adaptable to be removably mounted on the bed for coaction with or to be driven by the headstock.

Other objects and characteristic features of the invention will appear from the following detailed description of one embodiment of the in- 25 vention taken in connection with the accompanying drawings in which the same reference numerals are applied to identical parts in the several figures and in which Fig. 1 is a broken view in front elevation of a 30 machine constructed in accordance with the invention;

Fig. 2 is an end view of the wood turning driving head;

Fig. 3 is a cross section on the line 3-3 of Fig. 1;

Fig. 4 is a detached broken view in perspective of one end of the tool rest base;

Fig. 5 is a broken view in front elevation of the left end of the machine with the grinding wheel unit and the circular saw unit mounted thereon 40 and with the saw guard omitted for clarity;

Fig. 6 is a broken view thereof in right hand end elevation with the saw guard in place and the work guides removed for clarity;

Fig. 7 is a detached view of the saw table sup- 45 port;

Fig. 8 is a broken view in front elevation and partly in section on an enlarged scale of the jigsaw unit as mounted on the bed with the front plate omitted;

50 Fig. 9 is a detached face view of the jigsaw clamp;

Fig. 10 is an edge view thereof;

Fig. 11 is an end view thereof;

Fig. 12 is a detached plan view of the jigsaw as e;

Fig. 13 is an enlarged section on the line l3l 3 of Fig. 7;

Fig. 14 is an enlarged plan view of the Jolnter or planer unit, and

Fig. 15 is an enlarged view thereof in left hand 5 end elevation.

In the embodiment of the invention herein disclosed a wood working machine adaptable for a plurality of modes of operation has a main supporting member or bed supported on legs or other means not shown. The bed 20 comprises a pair of parallel symmetrically positioned, longitudinal, channel shaped, front and rear members 2| and 22 which are rigidly spaced apart and held together by means of transverse end 15 members 23 rigidly secured to the ends of the front and rear members preferably by welding, so that the front and rear members 2| and 22 and the end members 23, 23 form a substantially unitary paralleloplpedal box of great rigidity as 20 regards both bending and torsional stresses thereon. The oppositely facing edges of the upper, inwardly extending flanges of the front and rear channel members define between them a longitudinal slot 24 which serves to receive the vari- 25 ous clamping means used to mount various tool units on the bed. The top surfaces of the two members 2| and 22 are machined to lie in one substantially flat and horizontal plane, and the inner edges of the flanges which define the slot 24 are made substantially vertical and mutually parallel planes to serve as guides. A similar slot 25 is defined between the bottom flanges of the members 2| and 22 and serves to allow chips and dirt entering the box to fall through or be removed and also gives access to the under side of units mounted on the bed.

A motor 26 is mounted on the vertical wall of an L shaped support, the top horizontal wall being bolted as at 21 or otherwise secured to the under side of the bed near the left end thereof. The motor is preferably provided with a stepped grooved driving pulley 28 to receive a belt 29 which passes up through the slots 24 and 25, The motor is fed with electric current through line wires and a control switch not shown.

0n the upper face of the bed at the left end thereof is rigidly secured a headstock frame 30 having flat horizontal base 3| portions secured to the bed as by bolts or screws 32, and having integral therewith spaced upstanding left and right end walls 33 and 34 extending transversely of the bed. A generally U shaped central vertical wall 35 extends across between the end walls and is formed at its two upper ends with integral enlargements 38 and 31 in which is Journalledh horizontally disposed shaft 38 having a pair 0 central threaded coaxial stubs 39 and 48 extending out beyond the walls 33 and. Preferably for cheapness, lightness and rigidity the headstock construction comprises making the transverse walls 33 and 34 integral with the base portion 3| by bending from sheet steel. The center wall 35 is cut from similar material and welded along its edges to the walls 33 and 34 and to the base portion 3|. The bearing portions 36 and 31 may be simply and cheaply made from heavy walled tubing or from axially drilled rod stock, and are likewise welded to the sidewalls 33 and 34 and to the upper edges of the center wall 35. The structure thus created is cheaper and lighter than a commensurately strong and rigid casting.

In Fig. 1, the machine is shown as adapted for use as a wood turning lathe. To this end a driving head 4| having a central longitudinal bore 42 threaded to coact with the stub 48 is mounted thereon. The head 4| is also provided with two pairs of recesses 43, 43 and 44, 44 located at diflerent radial distances from the axis of the head and adapted to receive a pair of chisel edged driving dogs 45, 45. The central bore 42 is further formed at its right hand end to receive a center point 46. A stepped pulley 41 to be driven by the belt 29 is secured tothe central part of the shaft 38.

A tailstock frame so is mounted adjustably on the top face of the bed 28 as by bolts 5| and a transverse clamp member 14. This frame 58 comprises preferably a flat horizontal base portion 52 and an integral transverse vertical wall 53 formed from one piece of sheet stock. A central longitudinal wall 54 of sheet stock is welded along its bottom edge and left hand edge to the base 52 and vertical wall 53 respectively. Bearing portions 55 and 56 are welded in place as shown in Fig. 1, portion 55 to the wall 53 and to the wall 54, and portion 56 to the wall 54..

A threaded tail center 51 having a center point 58 is slidably mounted in the bearings 55 and 56 in coaxial alignment with the shaft 38, and is longitudinally adjustable by means of a hand wheel 59 threaded thereon between the bearings. The center 51 is kept from rotating by means of a key 68 mounted in the bearing 56 and riding in a slot 6| formed longitudinally in the center body. A thumbscrew 62 mounted in the bearing '56 and abutting at its end against the key 88 serves to clamp the center 51 in adjusted position.

A tool rest 63 of conventional form is mounted on a post 64 which is vertically adjustable in a socket 65 by means of a clamp screw 66. The socket 65 is mounted on and secured as by welding to a base 61 having generally an inverted T cross section. The base 61 rests on and extends transversely across the bed 28, and is formed with a central vertical slot 18 throughout all of its length except for its end walls. A clamp 68 of inverted channel cross section is positioned within the bed 28 parallel to the base 61 and abutted against the under surfaces of the upper flanges of the bed members 2| and 22. A clamp bolt 69 has its head in the channel of the clamp 68 and its body'extends up through a perforation therefor in the web of the clamp 68, through the slot 24 and through the slot 18 in the base 61. A wing nut 1| on the upper end of the bolt 69 serves to clamp the member 68,. the bed 28 and the base 61 together thus holding the toolrest 63in place. Loosening the nut 1| permits the base 18 to be adjusted along the bed 28 f together with the clamp 68. and also permits the base 61 to be adjusted transversely of the bed 28 by moving relatively to the clamp 68 also, the bolt 69 sliding in the slot 18. If desired a pin, 5 stud, lug or the like may be rigidly mounted on the clamp 68 to extend up into the slot 18 and coact with the bolt 69 to prevent rotational relative movement, of the clamp 68 and base 61.

Preferably, for cheapness and lightness, the base 61 may be made of a pair of angle beams 1| and 12 positioned back to back in'parallel spaced relationship, defining the slot 18 between them and held: together and spaced apart by a correspondingly inv'erted T-shaped flat plate 13 welded across the ends-of the bars 1| and 12 at either end thereof.

It will be noted that all of the structural elements of the frames and supports thus far described as pertaining to the machine are made 20 from commercial tubes or beams of stock sections or from simple cut and ,bent sheet metal and are welded together. Clumsy and cumbersome as well as relatively brittle members of cast metal are completely obviated.

In Fig. 1, for convenience of illustration, the jointer unit further disclosed in Figs. 14 and 15 is shown in position on the machine but will be described later in detail in connecton with the latter figures. I

Figs. 5 and 6 show a circular saw unit and a grinding unit set up simultaneously for convenience of illustration, although either may be used alone. The saw and its appurtenances are at the right side of the pulley 41 and the-stone at the left. The saw 15 is centrally perforated and mounted on the stub 48 with a spacing collar 16 and a saw clamp 11 betweenthe saw and the journal 31. On the other side of the saw are a saw clamp 18 and a lock nut 19 threaded on the'stub 48 whereby the saw is secured on the stub 48 of the shaft 36 to be driven thereby.

A saw table 88 is provided to carry work to the saw. This table comprises a base member 8| consisting of a relatively heavy rectangular metal plate secured across the top of the bed by bolts or screws 82. The two ends, front and back, are turned up as verticalflanges 83 and 84. At the right and left hand sides vertical transverse partial walls 85 of relatively thin sheet metal are welded in place. Two vertical channels or guide ways 86 and 81 are cut in the outer face of each flange 83 and 84. In the left hand guideway 86 of each flange is slidably mounted one of a pair of identically similar support members, 88 in front and 89 in the rear. Each of the members 88 and 89 has a median longitudinal slot in its lower portion through which passes a clamp screw 98, 98 mounted in the corresponding flange 83 or 84 for clamping the members 88 and 89 in verti- 60 cally adjusted position.

The upper end of each of the members 88 and 89 is tapered (-Fig. '1) and vertically slotted and a round ended bearing piece 9|, 9| is welded in place in each of the slots. A flat supporting plate 85 92 or 93 is positioned vertically against the outer face of each member 88 or 89 and clamped thereto by a clamp screw 94, 94 mounted in the member, in a threaded hole 95 therein. The screw 94 passes through an arcuate slot 96 in the plate 92 70 or 93 as the case may be, the slot having its center of curvature at the tip of the bearing piece 9 I, so that the plate may be swingingly adjusted on the member about the tip of the bearing piece as a center. The top edge of each plate 92 or 93 is 78 turned out at right angles to form a flange which is welded to the under face of a flat generally rectangular table-top 96 which is thus supported to be adjustable for height by means of the screws 90 and for inclination to the planes of the saw by means of the screws 94.

The under side of the table top 95 is formed with angular or arcuate notches I68 to receive the tips of the bearing pieces 9I and these notches are so proportioned that the axis about which thetable is tiltable lies'very near the top or working surface of the table. Hence the customary slot through which the saw passes may be made narrow. Adjustable guides 91 and 98 for the work are mounted on top of the table.

The rear supporting member 89 has a block I00 welded thereto in which is supported a stationary shaft or spindle I04 extending horizontally therefrom to the left. A block IOI is pivoted at the left end of the spindle and carries one end of a gooseneck arm I02, the other end of which overhangs the saw and carries a saw guard I03 pivoted thereon.

The grinding unit comprises a grinding wheel or stone I05 mounted on the stub 39 of the shaft 38 by means of a nut I08 and clamps I01. A guard or housing I 08 surrounds the wheel I05 and is secured to the headstock wall 33 by bolts I09. A tool grinding rest H0 is mounted in the work opening of the housing I08. The housing I08 comprises a vertical inner wall I59 of sheet metal, generally c-shaped, which rests against the outer face of the wall 33 and is secured thereto by the bolts I09 which pass through horizontal slots I10 in the wall I89. The wall I59 is formed at its two front edges and at its top and rear edges with integral flanges I1I extending out to the left at right angles to the walL-A vertical sheet metal outer wall I12 of shape generally like that of the wall I69 is secured to the outer edges of the flanges I1 I, as by crimping the edges thereof over the everted edges of the flanges. The work rest I I0 is carried on the front edges of the opening of the c at a level just below the level of the axis of rotation of the wheel I05. Thus since the housing as a whole may be adjusted forward and backhorizontally on the bolts I09 the tool rest remains at the proper height relative to the wheel for a considerable range of wheel diameters.

Figs. 8 to 13 inclusive show the jigsaw unit, in which the same saw table 96 is used as just described in connection with the circular saw unit. A c-shaped support III is secured to the outer face of the headstock wall 34 by bolts or screws I I2 and a vertical tubular sleeve H3 is welded to the support III. A collar H4 is secured within each end of the sleeve and between these two collars is a split lubricating sleeve I I5 of felt within the sleeve II3. A pitman IIG slides in and is guided by the collars I I4 and is driven in vertical reciprocation by a link I I1, one end of which is journalled in the pitman and the other end of which is eccentrically journalled in a driving head I I8 mounted on the stub 40 of the shaft 38. The sleeves I I3 and I I5 are slotted to pass the pitman.

In the upper end of the pitman H6 is an axial threaded bore to receive the correspondingly threaded stem of a saw clamp base II9. A lock nut I20 is threaded on the stem to lock it in position in the pitman. The upper end of the base II 9 is axially bored and recessed to receive a folded saw clamp I22. Clamp screws I2I are mounted in the pitman head to close the clamp on the lower extremity of a saw I23 placed therein.

A saw guide roller I24 is supported just below the under side of the saw slot in the table 98 in position to bearagainst the rear non-serrated edge of the Jigsaw blade I23, on a pin I25 mounted in a recessed block I28 secured to a rod I21 sup- 5 ported between clamping blocks I28 and I29 held together and against the under side of the table by a clamp I30 and a screw I3I.

Above the table 98 and in vertical alignment with the clamp I22 is an identically similar clamp 10 222, carried in a member 2 I 9 similar to the member I22, and clamped by screws 22I, 22I. The

threaded stem of the member 2I9 is screwed into threaded tube I32 and locked in place by a nut 220. The tube I32 is slidably supported in a ver- 15 tical sleeve I33 mounted in an upper head I34 secured to the end of a supporting beam I35. The beam I35 is a T-beam extending horizontally to the right and then curved down so that its right end rests against the front face of the tail- 20 stock 50 as shown in dotted lines in Fig. 1 where it is secured by bolts I38.

The tube I32 is supported on the head I34 by two compression springs I31 and I38 surrounding the tube. The lower end of the spring I31 25 abuts against the head I34 and its upper end both abuts agaii. and grips a collar I38 loosely encircling the tube. The lower end of the spring I38 both grips and abuts against the collar and its upper end abuts against an annular stop I40 30 secured near the top of the tubes. The two springs are coiled in opposite directions so that each nullifies the tendency of the other to rotate the tube I32 and therewith the saw as the springs are compressed and released.

An outer tube MI is mounted on the head I34 concentric to the tube I32 and a washer I42 of suitable material such as leather or rubber isgripped between the stop I40 and a collar I43 held on the tube I32 by a jam screw I44. The head I34 is provided with a passage I45 leading from the annular space between the tubes I32 and HI and when in action the washer I42 pumps an intermittent Jet of air from the passage I45 to blow chips away from work and saw.

Figs. 14 and 15 and the left hand end of Fig. 1 show a jointer or planer unit in position for use. This comprises a principal vertical supporting plate I46 applied against the outer face of the left wall 33 of the headstock, and a second plate I41 welded flatwise thereto and bent over horizontally at the top to form a table I48. These two conjointed plates are held adjustably in place against the member 33 by bolts I48 passing through vertical slots I50 in the plates I45 and I41. The table I48 is divided into front and rear halves by a broad slot I5I to allow a rotary cutting tool I52 to project up therethrough, the tool being mounted on the stub 39 of the shaft 38. A pair of slabs I53 of maple wood or other suitable 60 material are supported on the table I48 and are adjustably held thereon by screws I54 passing through slots I55 in the table and entering clamp blocks I56.

A guard post support I51 consisting of a 05 generally c-shaped strip of sheet metal is welded to the under side of the left front comer of the table I48 and extends its ends out beyond the left edge of the table. A post I58 is journalled in the support. The upper portion of the post is 70 surrounded by a sleeve I59 whose lower end rests on and is supported by the upper face of the support I51.

A guard has a vertical outer wall I formed at the bottom with an integral inturned flange 15 its lower end hooked over the support Ill and its upper end hooked over the edge of the vertical guard wall in such a way asto yieldingly resist pivotal motion of the guard as a whole about the post in a counterclockwise direction as seen from above. The guard is further formed with an integral front wall depending vertically from the roof in a direction slanting from left front to right rear so that when a piece of work is pushed rearwardly over the blocks I" the guard is swung yieldingly out to the left. A roughly semicylindrical guard I is permanently positioned under the table and around the'tool, and is longitudinally slotted as at I to allow chips and debris from the work to fall through. The-guard is secured to the table I and to the plate I" as by welding as shown at I61, thus aiding to support and stifien the table.

The apparatus thus disclosed is self-evidently adaptable to the principal operations required inwoodwork but the principles embodied may also be applied in a metal working machine or other analogous apparatus. It will be noted that no castings except possibly the tail stock adjusting wheel 59 are required, but the entire apparatus is composed of parts which can be simply and cheaply made from stock beams of standard cross-section or from sheet metal and that only cutting and bending operations are requisite for its construction as regards the principal members. No drawing or stamping operations are needed. Thus ordinary machine shop tools only are required with no expense for heavy press work or expensive press tools or for foundry work and 'molds.

The embodiment of the invention herein dis- 5 closed is illustrative merely and may be modilied and departed from in many ways without departing from the spirit and scope of the invention as pointed out in and limited only by the appended claims. r

What is claimed is: e a.

1. In a machine tool. a bed comprising two longitudinal metal beams having a channel section and spaced apart and held together in substantially parallel relation by metal plates welded 15 across the ends thereof in combination with a Jigsaw head support comprising an end wall of sheet metal having one end bent at right angles to form an integral base portion, a central wall of sheet metal perpendicular to the side wall and 20 to the base portion and welded to both, and a supporting arm consisting of a beam having a vertical portion secured'to theside wall and an integral horizontal portion.

2. In a machine tool, a jigsaw head unit comprising an end wall of sheet metal having one and bent at right angles to form an integral base portion, a central wall of sheet metal perpendicular to the side wall and to thebase portion and welded to both, and a supporting arm con- 30 ,sisting of a beam having a-vertica'l portion secured to the side wall and an integral horizontal portion, in combination with a head mounted on the the housing and abutting against the housing and the arm, and a saw clamp mounted in the housing.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2576704 *Mar 19, 1949Nov 27, 1951Seneca Falls Machine CoMeans for engaging and driving rotated workpieces
US2635651 *Mar 22, 1947Apr 21, 1953Birtman Electric CoJigsaw with drive of scotch yoke type
US2733741 *Nov 10, 1953Feb 7, 1956Portable Electric Toolslindee
US2735457 *Oct 25, 1954Feb 21, 1956 Raspanti
US3071889 *Apr 8, 1959Jan 8, 1963Julian SilverConvertible wood type machine shop toy
US3128805 *Aug 18, 1961Apr 14, 1964 Electric motor-driven convertible wood machine shop toy
US8047106 *Aug 19, 2008Nov 1, 2011Lee-Cheng ChangWood working lathe
U.S. Classification83/748, 144/48, 144/1.1, 142/53, 144/39
International ClassificationB23D51/00, B23D49/00, B23D51/16, B27C9/02, B27C9/00
Cooperative ClassificationB23D49/007, B27C9/02, B23D51/16
European ClassificationB27C9/02, B23D49/00J, B23D51/16